worked as Deputy Associate Administrator for Exploration at NASA Headquarters in Washington, DC from 1991 through 1993, he also held other positions throughout. In 1995 he became Manager of the Space Shuttle Engineering Office, a technically challenging job that he enjoyed greatly. "That was an amazingly good feeling," he later said, "owning four Shuttles. Going down to the Cape and visiting them and actually feeling ownership and responsibility for them." However, his opposition to the creation of the United Space Alliance was controversial, and he spent less than two years in the position. From 1996 to 2000, Greene was Deputy Manager for Technical Development on the International Space Station. He received the NASA Distinguished Service Medal, the Rotary Stellar Award, and a Silver Snoopy award for his work on the station. Finally, between 2000 and 2004, he served as Chief Engineer at Johnson Space Center, where his role consisted primarily of advising the Center Director. Retirement After retiring from NASA in 2004, Greene worked as a part-time consultant on the Exploration Systems Architecture Study, which aimed to provide a blueprint for America's return to the Moon and Mars. "We put together a greybeard review team," explained NASA Associate Administrator Rex Geveden, describing Greene as "a famous technical curmudgeon in the Agency." In films Greene was interviewed extensively for two History Channel documentaries about Mission Control, Failure Is Not an Option and Beyond the Moon: Failure Is Not an Option 2''. Footnotes References American aerospace engineers American Jews NASA flight controllers Space Shuttle Challenger disaster Polytechnic Institute of New York University alumni People from Brooklyn 1942 births 2017 deaths 20th-century American engineers 21st-century American engineers Engineers from New York City Jewish engineers 20th-century American Jews 21st-century American Jews